One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,4)(5,6,9,12,10,14,8,13)(7,11,17,19,18,20,16,15)(23,30)(27,35)(31,36)(32,34)(2,4)(5,7,8,16,10,18,9,17)(6,11,13,15,14,20,12,19)(21,22,25,29)(23,31,30,36)(24,28,26,33)(27,34,35,32)(5,6,10,14)(7,15,18,19)(8,12,9,13)(11,17,20,16)(21,23)(22,27)(24,32)(25,30)(26,34)(28,36)(29,35)(31,33)(2,4)(5,8,10,9)(6,12,14,13)(7,16,18,17)(11,19,20,15)(21,24,25,26)(22,28,29,33)(23,32,30,34)(27,36,35,31)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.